# Coolant Fan PWM controlled - coolant temp X-Axis **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Created:** [April 28, 2024, 4:26pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248 "2024-04-28T16:26:43Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Jeepster](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jeepster/32/68_2.png) [@Jeepster](https://community.ecumaster.com/u/Jeepster)\ **Post date:** [April 28, 2024, 4:26pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/1 "2024-04-28T16:26:43Z")
like to control my new PWM enabled Fan. (EMU Classic) I changed the scale of x-axis in “PWM #1 CLT scale” to focus on the Range between 90 and 110 degrees. Works fine - until I recognize the change of x-axis also had effect on the x-axis of “idle ref table” (for example) this made my engine running worse. Is there a possibility to detail the x-axis in “PWM #1 CLT scale” without changing this scale for other configs? Michael ---
**Author:** ![FloorItGarage](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/flooritgarage/32/61_2.png) [@FloorItGarage](https://community.ecumaster.com/u/FloorItGarage)\ **Post date:** [April 29, 2024, 4:41am UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/2 "2024-04-29T04:41:17Z")
Instead of using 'PWM #1 CLT scale, just use the PWM #1 table and configure the X axis to be CLT. That table is not shared, you can adjust to your liking. ---
**Author:** ![Jeepster](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jeepster/32/68_2.png) [@Jeepster](https://community.ecumaster.com/u/Jeepster)\ **Post date:** [April 29, 2024, 11:54am UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/3 "2024-04-29T11:54:05Z")
no, unfortunately this does not help. even when changing the scale in “PWM #1 table”, all other configs are reduced to the range 90-110 degrees Celsius. (Software Version 1.225) ---
**Author:** ![FloorItGarage](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/flooritgarage/32/61_2.png) [@FloorItGarage](https://community.ecumaster.com/u/FloorItGarage)\ **Post date:** [April 30, 2024, 5:27pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/4 "2024-04-30T17:27:21Z")
I stand corrected, so it does affect the axis. I do not have a solution for this. ---
**Author:** ![Jeepster](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jeepster/32/68_2.png) [@Jeepster](https://community.ecumaster.com/u/Jeepster)\ **Post date:** [May 2, 2024, 7:54am UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/5 "2024-05-02T07:54:28Z")
> [@Jeepster](#): > > “PWM #1 CLT scale” hm, anyone else have any ideas? I would like to use the Ecumaster for the control and not install additional sensors and controls. Is it possible to separate the CLT scale at “PWM #1 CLT scale” in the software? It might require some memory, but I think others might be interested. ---
**Author:** ![veronatii](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/veronatii/32/394_2.png) [@veronatii](https://community.ecumaster.com/u/veronatii)\ **Post date:** [May 7, 2024, 5:44pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/6 "2024-05-07T17:44:27Z")
I’m also interested in utilizing a PWM table for my cooling fan. Following for updates! ---
**Author:** ![Jeepster](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jeepster/32/68_2.png) [@Jeepster](https://community.ecumaster.com/u/Jeepster)\ **Post date:** [May 7, 2024, 8:05pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/7 "2024-05-07T20:05:41Z")
Very nice, that makes me happy. First of all, I reduced my clt scale, which now ranges from 10 to 110 degrees Celsius. Summer mapping 😉 This allows me to roughly control the range above 90 degrees, but very roughly. The fan increases its speed as soon as the thermostat opens ☹ Hopefully there is another solution where I can control the range above 90 degrees in a dedicated and detailed way. ---
**Author:** ![Peter](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/peter/32/66_2.png) [@Peter](https://community.ecumaster.com/u/Peter)\ **Post date:** [May 15, 2024, 12:08pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/8 "2024-05-15T12:08:08Z")
Maybe I’m missing something here, but it seems like reinventing the wheel? Check the link, below. > **[ECUMaster Tuning, Tips, and Builds | Facebook](https://www.facebook.com/groups/ECUMaster/permalink/3387111461554851/)** > > User Group for ECUMaster Engine Management Products. ---
**Author:** ![Hussain\_bo\_Hamad](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/hussain_bo_hamad/32/839_2.png) [@Hussain\_bo\_Hamad](https://community.ecumaster.com/u/Hussain_bo_Hamad)\ **Post date:** [October 21, 2024, 8:29pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/9 "2024-10-21T20:29:54Z")
Any updates for it, can you please share the settings. ---
**Author:** ![Jeepster](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jeepster/32/68_2.png) [@Jeepster](https://community.ecumaster.com/u/Jeepster)\ **Post date:** [October 29, 2024, 8:34pm UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/10 "2024-10-29T20:34:27Z")
no, unfortunately no updates here. I have a configuration similar to the one linked by Peter (Facebook). The only difference is that I have reduced the temperature range to 10-110 degrees Celsius so that I have a slightly finer resolution from 90 degrees to 110. I will have to correct this again in winter temperatures. ---
**Author:** ![190jz](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/190jz/32/2810_2.png) [@190jz](https://community.ecumaster.com/u/190jz)\ **Post date:** [February 4, 2025, 2:05am UTC](https://community.ecumaster.com/t/coolant-fan-pwm-controlled-coolant-temp-x-axis/1248/11 "2025-02-04T02:05:15Z")
I’m attempting this set up for my cooling fan. Anyone has update and can share your setup?